Presents a methodology for managing information resources by permitting aggregations of mixed-media documents to be interactively defined, shared, and managed using relational database management technology in concert...
详细信息
Presents a methodology for managing information resources by permitting aggregations of mixed-media documents to be interactively defined, shared, and managed using relational database management technology in concert with an extended object-oriented data model. This hybrid approach, based on a polymorphic object model (POM), allows the definition and instantiation of new types of compound documents without requiring modifications to be made to the underlying database schema. Existing documents and results from database queries are dynamically organized into individually meaningful categories as objects using a predicate-based mechanism. Furthermore, the authors have developed a prototype document management system based on the POM. Analysis indicates that gains in flexibility are traded for slightly increased amounts of meta-data management overhead and document retrieval latencies when compared to conventional DBMS technology.< >
XML (eXtended Markup Language) has been widely used as the universal format for publishing and exchanging data in World Wide Web, due to its capability to support flexible representations of data. For that, the import...
详细信息
ISBN:
(纸本)9781467356107
XML (eXtended Markup Language) has been widely used as the universal format for publishing and exchanging data in World Wide Web, due to its capability to support flexible representations of data. For that, the importance of transforming other data sources, such as objectoriented Data Base (OODB) and Relational Database to XML, has increased. The goal of this paper is to develop an efficient method to transform OODB to XML that can be used by wide range of endusers who don't have to be specialists. Although the paper presents no novel approach, but it is mainly concerned with developing rule based methodology to convert OODB schema to XML schema.
The objective of this paper is to present the first results concerning the mapping and implementation of the Fuzzy Semantic Model (FSM) as a Fuzzy object-Relational database Model (FuzzORM). This solution permits to t...
详细信息
ISBN:
(纸本)9781467374293
The objective of this paper is to present the first results concerning the mapping and implementation of the Fuzzy Semantic Model (FSM) as a Fuzzy object-Relational database Model (FuzzORM). This solution permits to take advantages of both relational and object-oriented databases. The object-relational database management system PostgreSQL has been used for the implementation of the FuzzORM.
We present on-going research concerning an objectoriented associative memory. It is a massively parallel architecture, fully programmable and configurable, composed of VLSI circuits. It is well adapted to genome data...
详细信息
We present on-going research concerning an objectoriented associative memory. It is a massively parallel architecture, fully programmable and configurable, composed of VLSI circuits. It is well adapted to genome data processing. DNA and proteins sequences alignment is a very important application in biology research. Standard sequences alignment usually entails software implementation with disastrous execution time (typically one year). A parallel implementation can solve such a problem. Rapid-2 will be able to execute and accelerate genome tasks. We programmed and simulated several variants of the Needleman and Wunsch algorithm (1970) with progressive complexity (gaps, Dayhoff mutation matrix). Execution time evaluations of all these methods are presented. We consider that Rapid-2 could improve software implementation of a factor 100.< >
This paper briefly describes the new results of the Cave Project. Cave Project is a research initiative aiming to make possible a user-transparent distribution of CAD resources over the World Wide Web. Early results o...
详细信息
ISBN:
(纸本)9780769508436
This paper briefly describes the new results of the Cave Project. Cave Project is a research initiative aiming to make possible a user-transparent distribution of CAD resources over the World Wide Web. Early results on developing a web based interface for integrated circuits design tools were presented in the late 1990s. By the year 2000, the research focus has been on evolving the tool-tool integration architecture to provide better design flow modeling using object-oriented design representation.
This paper handles the conversion from an existing XML-Schema into object-oriented database. The major motivation for this work is to store XML-Schema into objectoriented database. There are more common features betw...
详细信息
This paper handles the conversion from an existing XML-Schema into object-oriented database. The major motivation for this work is to store XML-Schema into objectoriented database. There are more common features between the object-oriented model and XML, and thus it is more attractive to map from XML into object-oriented database;such mapping preserves database specifics. To achieve the mapping, what we call the object graph is derived based on characteristics of the XML-Schema;it simply summarizes and includes all complex and simple elements and the links, which are the basics of the XML-Schema. Then, the links are simulated in terms of nesting to get a simulated object graph. This way, everything in a simulated object graph is directly representable in object-oriented database. Finally, we handle the mapping of the actual data from XML document(s) into the corresponding object-oriented database.
暂无评论